mm908e626 Freescale Semiconductor, Inc, mm908e626 Datasheet
mm908e626
Available stocks
Related parts for mm908e626
mm908e626 Summary of contents
Page 1
... HB4 VSS RST RST_A IRQ IRQ_A SS HVDD PTB1/AD1 RXD PTE1/RXD PTD1/TACH1 FGEN Port A I/Os BEMF Port B I/Os PTD0/TACH0/BEMF GND[1:2] EP Port C I/Os MM908E626 Document order number: Rev 3.0, 12/2005 908E626 DWB SUFFIX 98ARL105910 54-TERMINAL SOICWB-EP Temperature Package Range ( -40°C to 115°C 54 SOIC WB-EP Bipolar N Step S Motor ...
Page 2
GND1-2 VSUP1-3 RST_A IRQ_A BEMF FGEN LIN RXD SS PTE1/RXD PTD1/TACH1 PTD0/TACH0 PTB1/AD1 RST IRQ VREFL VSSA EVSS EVDD VDDA VREFH Figure 2. Figure 1. 908E626 Simplified Internal Block Diagram 908E626 2 Internal Bus Analog Integrated Circuit Device Data PORT ...
Page 3
Transparent Top PTB7/AD7/TBCH1 View of Package PTB6/AD6/TBCH0 PTC4/OSC1 PTC3/OSC2 PTC2/MCLK PTB5/AD5 PTB4/AD4 PTB3/AD3 PTB1/AD1 PTD0/TACH0/BEMF PTD1/TACH1 Table 1. 908E626 TERMINAL DEFINITIONS A functional description of each terminal can be found in the Functional Terminal Description section beginning on Die Terminal ...
Page 4
TERMINAL CONNECTIONS Table 1. 908E626 TERMINAL DEFINITIONS A functional description of each terminal can be found in the Functional Terminal Description section beginning on Die Terminal Terminal Name MCU 42 PTE1/ RXD MCU 43 VREFL 48 VREFH MCU 44 VSSA ...
Page 5
MAXIMUM RATINGS All voltages are with respect to ground unless otherwise noted. Exceeding limits on any terminal may cause permanent damage to the device. Rating ELECTRICAL RATINGS Supply Voltage Analog Chip Supply Voltage under Normal Operation (Steady- State) Analog Chip ...
Page 6
STATIC ELECTRICAL CHARACTERISTICS STATIC ELECTRICAL CHARACTERISTICS STATIC ELECTRICAL CHARACTERISTICS All characteristics are for the analog chip only. Refer to the 68HC908EY16 datasheet for characteristics of the microcontroller chip. Characteristics noted under conditions 9.0 V noted reflect the approximate parameter mean ...
Page 7
STATIC ELECTRICAL CHARACTERISTICS (continued) All characteristics are for the analog chip only. Refer to the 68HC908EY16 datasheet for characteristics of the microcontroller chip. Characteristics noted under conditions 9.0 V noted reflect the approximate parameter mean at T Characteristic SYSTEM RESETS ...
Page 8
STATIC ELECTRICAL CHARACTERISTICS STATIC ELECTRICAL CHARACTERISTICS (continued) All characteristics are for the analog chip only. Refer to the 68HC908EY16 datasheet for characteristics of the microcontroller chip. Characteristics noted under conditions 9.0 V noted reflect the approximate parameter mean at T ...
Page 9
This paragraph is boilerplate - you may add to it but, can not change wording. You may change numeric values STATIC ELECTRICAL CHARACTERISTICS (continued) All characteristics are for the analog chip only. Refer to the 68HC908EY16 datasheet for characteristics of ...
Page 10
DYNAMIC ELECTRICAL CHARACTERISTICS DYNAMIC ELECTRICAL CHARACTERISTICS DYNAMIC ELECTRICAL CHARACTERISTICS All characteristics are for the analog chip only. Please refer to the 68HC908EY16 datasheet for characteristics of the microcontroller chip. Characteristics noted under conditions 9.0 V Typical values noted reflect the ...
Page 11
MICROCONTROLLER PARAMETRICS MICROCONTROLLER For a detailed microcontroller description, refer to the MC68HC908EY16 datasheet. Module Core High-Performance HC08 Core with a Maximum Internal Bus Frequency of 8.0 MHz Timer Two 16-Bit Timers with Two Channels (TIM A and TIM B) Flash ...
Page 12
TIMING DIAGRAMS t t TXD-LIN-LOW Tx-LIN-low Tx TXD TXD LIN LIN Recessive State Rx RXD t ∆t Fall-time 0.8 V 0.8 VSUP SUP 0.2 V 0.2 VSUP SUP 908E626 12 TIMING DIAGRAMS t t TXD-LIN-HIGH Tx-LIN-high 0.9 ...
Page 13
T = 25°C J 1.0 0.8 0.6 0.4 0.2 0.0 0.0 0.5 250 200 150 100 Analog Integrated Circuit Device Data Freescale Semiconductor Functional Diagrams 1.0 1.5 2.0 2.5 3.0 Amperes Amperes Figure 6. ...
Page 14
FUNCTIONAL DESCRIPTION INTRODUCTION The 908E626 device was designed and developed as a highly integrated and cost-effective solution for automotive and industrial applications. For automotive body electronics, the 908E626 is well suited to perform stepper motor control, e.g. for climate or ...
Page 15
CURRENT LIMITATION FREQUENCY INPUT TERMINAL (FGEN) Input terminal for the half-bridge current limitation PWM frequency. This input is not a real PWM input terminal; it should just supply the period of the PWM. The duty cycle will be generated automatically. ...
Page 16
FUNCTIONAL DESCRIPTION FUNCTIONAL TERMINAL DESCRIPTION ADC SUPPLY TERMINALS (VDDA AND VSSA) VDDA and VSSA are the power supply terminals for the analog-to-digital converter (ADC recommended that a high-quality ceramic decoupling capacitor be placed between these terminals. Important VDDA ...
Page 17
INTERRUPTS The 908E626 has five different interrupt sources as described in the following paragraphs. The interrupts can be disabled or enabled via the SPI. After reset all interrupts are automatically disabled. LOW-VOLTAGE INTERRUPT The Low-Voltage Interrupt (LVI) is related to ...
Page 18
FUNCTIONAL DEVICE OPERATION LOGIC COMMANDS AND REGISTERS OCF — OVERCURRENT FLAG BIT This read-only flag is set on an overcurrent condition. Reset clears the OCF bit. To clear this flag, write a logic [1] to the appropriate overcurrent flag in ...
Page 19
RESET INTERNAL SOURCES Autonomous Watchdog AWD modules generates a reset because of a timeout (watchdog function). High-Temperature Reset To prevent damage to the device, a reset will be initiated if the temperature rises above a certain value. The reset is ...
Page 20
FUNCTIONAL DEVICE OPERATION LOGIC COMMANDS AND REGISTERS SS Read/Write, Address, Parity MOSI R System Status Register MISO SPSCK Rising edge of SPSCK Falling edge of SPSCK Change MISO/MOSI Sample MISO/MOSI Output Input During the inactive ...
Page 21
Table 3. List of Registers Addr Register Name R/W R H-Bridge Output $01 (HBOUT H-Bridge Control $02 (HBCTL System Control $03 (SYSCTL Interrupt Mask $04 (IMR Interrupt Flag $05 (IFR ...
Page 22
FUNCTIONAL DEVICE OPERATION LOGIC COMMANDS AND REGISTERS TXD Terminal The TXD terminal is the MCU interface to control the state of the LIN transmitter (see Figure , page 2). When TXD is LOW, LIN output is low (dominant state). When ...
Page 23
Overtemperature protection. • Overvoltage and undervoltage protection. Control Half-Bridge Control Each output MOSFET can be controlled individually. The general enable of the circuitry is done by setting PSON in the System Control Register (SYSCTL). HBx_L and HBx_H form one ...
Page 24
FUNCTIONAL DEVICE OPERATION LOGIC COMMANDS AND REGISTERS • High-side MOSFET turned on for half-bridge output x. HALF-BRIDGE CURRENT LIMITATION Each low-side MOSFET offers a current limit or constant current feature. This features is realized by a pulse width ...
Page 25
EMI due to a reduction of the di/dt (Figure ). Coil1 Current Coil2 Current FGEN Input (MCU PWM Signal) Current in VSUP Line Figure 13. Offset Chopping for Step Motor Control HALF-BRIDGE CURRENT RECOPY Each ...
Page 26
FUNCTIONAL DEVICE OPERATION LOGIC COMMANDS AND REGISTERS 1 HALF-BRIDGE OVERTEMPERATURE PROTECTION The half-bridge outputs provide an overtemperature pre- warning with the HTF in the Interrupt Flag Register (IFR). In order to protect the outputs against overtemperature, the High-Temperature Reset must ...
Page 27
CSA — H-Bridges Current Sense Amplification Select Bit This read / write bit selects the current sense amplification of the H-Bridges. Reset clears the CSA bit. • Current sense amplification set for measuring 0.5 A. • ...
Page 28
FUNCTIONAL DEVICE OPERATION LOGIC COMMANDS AND REGISTERS HVDD_OCF — HVDD Output Overcurrent Flag Bit This read / write flag is set on an overcurrent condition at the HVDD terminal. Clear HVDD_OCF and enable the output by writing a logic [1] ...
Page 29
To enhance the ease-of-use of the 908E626, various parameters (e.g. ICG trim value) are stored in the flash memory of the device. The following flash memory locations are reserved for this purpose and might have a value different from the ...
Page 30
... IRQ IRQ_A VSUP[1:3] VDD GND[1:2] VSS +5V VREFH VDDA RST EVDD RST_A 100nF IRQ VREFL MM908E626 IRQ_A VSSA EVSS CLK 10k PTC4/OSC1 PTB4/AD4 10k PTA1/KBD1 DATA PTA0/KBD0 10k PTB3/AD3 Analog Integrated Circuit Device Data Freescale Semiconductor ). ...
Page 31
... TST DD TYPICAL APPLICATIONS FACTORY TRIMMING AND CALIBRATION V DD VSUP[1:3] VDD VSS GND[1:2] VREFH VDDA RST EVDD RST_A 100nF IRQ VREFL MM908E626 IRQ_A VSSA EVSS CLK PTC4/OSC1 10k PTB4/AD4 10k PTA1/KBD1 DATA PTA0/KBD0 10k PTB3/AD3 Communication Speed Normal Request External Baud Timeout ...
Page 32
TYPICAL APPLICATIONS FACTORY TRIMMING AND CALIBRATION This paragraph gives some device specific recommendations to improve EMC/EMI performance. Further generic design recommendations can be e.g. found on the Freescale website www.freescale.com. VSUP terminals (VSUP1:VSUP3) Its recommended to place a high-quality ceramic ...
Page 33
LIN L1 GND VBAT . Component Recommended Value C1 Bulk Capacitor C2 100nF, SMD Ceramic, Low ESR C3 100nF, SMD Ceramic, Low ESR C4 4,7uF, SMD Ceramic, Low ESR C5 180pF, SMD Ceramic, Low ESR (2) V1 Varistor Type TDK ...
Page 34
TYPICAL APPLICATIONS PACKAGING DIMENSIONS Important: For the most current revision of the package, visit 98ARL105910. 10.3 5 7 PIN 1 INDEX 5. TIPS 0 ...
Page 35
... All electrical, application and packaging information is provided in the data sheet. Package and Thermal Considerations This MM908E626 is a dual die package. There are two heat sources in the package independently heating with P temperatures, T and T ...
Page 36
ADDITIONAL DOCUMENTATION THERMAL ADDENDUM (REV 1.0) PTB7/AD7/TBCH1 1 54 PTB6/AD6/TBCH0 2 53 PTC4/OSC1 3 52 PTC3/OSC2 4 51 PTC2/MCLK 5 50 PTB5/AD5 6 49 PTB4/AD4 7 48 PTB3/AD3 IRQ 46 RST 10 45 PTB1/AD1 11 44 PTD0/TACH0/BEMF ...
Page 37
Figure 22. Transient Thermal Resistance R Device on Thermal Test Board Area A = 600 (mm Analog Integrated Circuit Device Data Freescale Semiconductor R θJA11 ...
Page 38
... Freescale Semiconductor Literature Distribution Center P.O. Box 5405 Denver, Colorado 80217 1-800-441-2447 or 303-675-2140 Fax: 303-675-2150 LDCForFreescaleSemiconductor@hibbertgroup.com MM908E626 Rev 3.0 12/2005 RoHS-compliant and/or Pb-free versions of Freescale products have the functionality and electrical characteristics of their non-RoHS-compliant and/or non-Pb-free counterparts. For further information, see http://www.freescale.com Freescale sales representative. For information on Freescale’ ...